Back in the cabin, Esther and David stared at each other.
"Did he really mean that?" David asked, looking bewildered.
"Yes," replied Esther, still feeling a little shocked. "I can tell when he means something."
"Wow..." said David, moving to sit on his bed. "I mean just... wow..."
Looking at him, Esther could see why Mark felt bad. He and David were like brothers in some ways. Mark had always been a very sharing person... she wasn't sure how she felt about his willingness to share her. On the other hand, it wasn't like Mark didn't have a possessive/jealous side, she'd seen that often enough, but he liked having David watch them. She liked having David watch them.
And Mark wanted her to do this. It turned him on. This wasn't the kind of thing she'd ever expected to do, but there was a part of her that was attracted to David... and she felt that there was a kind of erotic thrill of the forbidden.
As David sat on the bed, staring into space, Esther undressed. He didn't even move, and she had a feeling he was lost in his own thoughts. Well, she was going to interrupt that.
Moving in front of him, totally naked, Esther met David's startled eyes. He groaned at the sight of her naked body.
"Esther, I don't know if I can do this," he said.
"It's okay," she replied. "Mark really is okay with it. Or he'd have been back in that front door by now." She smiled. "He's still out there, which means he's taking his time. He really does want you to make love to me, and satisfy your own needs... and he really is aroused by the thought." Blushing she added, "I'm aroused by the thought."
David looked like he was going to say something else and she stepped closer, his head at just the right height for her breasts. Running her hands through his red hair, she leaned forward and kissed him, gently, on the lips. She felt him both respond and trynot to respond. Deepening the kiss, Esther planted one leg on either side of his lap, lowering herself against his body.
Out in the woods, Mark returned to the cabin, peeking in through the window across from the beds. He saw his naked wife straddling David, kissing him deeply... and David's hand slowly drift up to grip Esther's ass.
Moaning a little, Mark wished that it wasn't so cold out; this really was turning him on and he wished he could jerk off to the erotic sight, like David did when he was watching them.
David's hand clenched on Esther's ass, rough, digging into her flesh, and then it was like lightning flashed through him. Suddenly she was on her back, on his bed, and David was stripping off his clothes. He ran his hands over her body with an urgency that took her breath away, and his lips pressed against her, tongue tasting her skin. His first taste of woman in weeks... she moaned and let her hands roam over him, thinking of Mark walking through the woods and wondering if he was picturing this in his head.
Outside the window, Mark moaned, pushing his pant and snow pant-covered groin against the wall to rub his cock through the layers as David's red head disappeared between his wife's thighs. Esther was obviously moaning at David's tongue, red hair bobbing up and down as she writhed and gasped, her back arching and thrusting her breasts into the air. Mark was sure that his friend was eating her like a starving man.
Esther gasped, her eyes widening in shock as David's tongue went lower, pressing against her anus. She wanted to protest -- Mark had never touched her there! -- but at the same time it felt good, and so she just relaxed into it, feeling the strange sensation of her nerve endings tingling as David licked her asshole. Then his tongue returned to her pussy, eliciting fiery sensations from her wet folds, sliding back and forth betweenher holes and making her thrash with sexual bliss. Fingers pushed into her, one wet one poking into her asshole.
Again, she almost wanted to protest, but it felt good... strangely full, so she didn't say anything. David just did things differently from her husband, and this new experience was already teaching her some things. It felt good, his fingers moving in and out of her, one of them stretching out her back door. She'd heard about women who enjoyed having their assholes played with. Apparently she was one of them!
David licked and sucked, pushing his fingers in a mimicry of sex, going deep into her holes with them as he licked all around his questing digits. Then his lips found her clit, and Esther cried out, her hands clutching at his red hair as her back arched. David sucked the tender nub into his mouth and rolled it around, and Esther shrieked her pleasure as an orgasm crashed through her. In her mind's eye she pictured what it would be like if Mark was sitting and watching them on the bed and her orgasm just increased in intensity, making her writhe and thrash against David's fingers and mouth.
Mark couldn't tell what David had done to Esther, but she had obviously had enjoyed it. He'd done something different because her face had shown some hesitation and shock before she'd fallen into it. He wondered what David had done, rubbing his cock against the wall as he continued watching, wishing he was in there watching and able to touch himself.
Then David climbed on top of Esther, his hands and mouth on her breasts, squeezing and kneading the flesh. She could feel his cock rubbing along the inside of her thigh.
Remembering his reaction to her words the first time he'd watched her and Mark, Esther nibbled on his ear as he suckled at her nipple, murmuring, "I want you inside me..."
With a shuddering groan, David pressed his cock to her wet folds. Esther shivered as he started to push inside of her, the firstnew cock in her since her first time with Mark. Her pussy was so sensitive after he'd eaten her out, it felt electric, nerve endings tingling. He continued to suck and nibble at her nipple as he pushed inside of her -- easily with how slick she was -- and he bit down on it as he bottomed out. Esther groaned and arched her back, pushing her breast into his mouth.
As he released her nipple from between his teeth, David started thrusting, his mouth moving over her shoulder and neck, arms wrapped strongly around her. Esther moaned, her hands clutching at his back. He was rougher than Mark, teeth biting into her, hands rougher against her body. It turned her on though, thinking about Mark's smooth touch, feeling David's squeezing, questing fingers.
Pulling back, David pulled her legs up and rested them on her shoulders, putting his hands on her hips and looking down at his friend's wife as he fucked her. Esther realized that he was getting quite a good view, not only of his cock going in and out of her pussy, but of her breasts bouncing on her chest.
Mark almost brought his dick out into the cold when David switched positions. It gave him a fantastic view of his friend's cock violating his wife's pussy, Esther's face as she cried out in pleasure, and the lustful expression of David as he fucked her.
Esther cried out as David leaned forward, bending her in half, his body grinding hard against hers. He opened his mouth to catch her bouncing nipples, teeth scraping against them and making her squirm. Her hands were on his shoulders, trying to get the leverage to meet his thrusts as he humped her fiercely.
Letting her legs go, David fell on top of her. She kept her thighs spread wide as he pillaged her pussy, hips lifting to meet his thrusts and rub her clit against his body as she cried out with pleasure. Mark couldn't stand it anymore, and he wasn't getting as good a view either. He walked around to the door, quietly entering.
As soon as he got into the cabin, he started stripping. The two on the bed were so into their pleasure -- and so noisy about expressing it -- that they didn't even hear him as he undressed.
Esther cried out with ecstasy, her orgasm spiraling up as her body tightened down on David, who let out a hoarse groan. His arms had her in a constrictive embrace, and she couldn't move to get away from or meet his last brutal thrusts. He continued thrusting as he came, and she remembered in her mind's eye the way his dick would spurt from his moving fist while she watched him and Mark. Pleasure wrapped around rapture as his continual thrusting took her higher and higher, and she clutched at his back, crying out her passion.
Finally, his movements started to slow, and she let out a gasping sob as her over-stimulated pussy was finally able to stop spasming with gratification. She shuddered in his arms as they loosened around her, kissing his shoulder as he kissed her neck, and then rolled off of her.