Moving behind Buck, Ty grinned as he saw his friend's new twat twitch with want. Stepping forwards, he gently moved his huge cock down, rubbing the head against Bucks folds, getting the flat glans nice and lubed. Buck shuddered as he felt the head of Ty's shaft tickle his entrance.
"Well, go on! Put it in me already!" Buck cried, his legs shifting restlessly.
Rather than respond verbally, Ty lined his cock up with Buck's pussy lips and slowly started to push forwards, just getting the head into Buck's slick folds.
"Oohhh.... Ty, that feels great, but you're killing me here! I need that thing in me, now!"
"Ok, don't say you didn't ask for it!" Ty said, before shifting his weight.
With one long thrust, Ty buried himself up to the hilt in Buck's velvety folds. Buck gasped as Ty's cock stretched his pussy more than a stag's cock ever would, making a confusing mixture of pleasure and pain. Just as he got used to the 20 inch length sheathed within him, Ty started rocking his hips back and forth, slowly pumping in and out. Shuddering and moaning at the new sensations, both of them starting moving in time, faster and faster. Before long, Ty was hammering Buck's twat as fast as he could, balls swaying and breasts bouncing. Finally, as Ty slammed into Buck as far as he could, they both cried out in climax. Their balls pulled up as their cocks twitched, sends copious amounts of cum into Buck and onto the forest floor. At the same time, their pussies clenched, the muscles working in a milking motion, coaxing every drop of cum from the cock buried in them, both real and phantom.
They finally came down from their orgasmic high, Ty moving back and pulling his suddenly hyper-sensitive length from Buck. They collapsed next to each other, only having time to murmur a stunned "wow..." before they blacked out.