Nathan swatted Jake's tail aside after it hit him in the face making a "pfft" sound as he blew the bushy hair away from his snout. Since Jake was bending over to grab the laptop, moving the tail aside gave Nathan a direct view of Jake's new pussy nestled between her furry cheeks.
Nathan could feel his arousal swell and the tip of his penis began to emerge from his sheath. What's going on! Nathan thought while shaking his head. How can a dog be attracted to a squirrel? But they weren't fully a dog and a squirrel - and the human male side of Nathan was still sexually attracted to the human female side of Jake.
"Hey Jake, before we change anything else - you want to have a little fun with these bodies?"
Jake suddenly became very aware of Nathan's eyes on her. She also realized the position she was in and the view she was giving to Nathan. "Shit!" Jake exclaimed while straightening up. She turned to address Nathan - "You better not mean what I think you are..."
Jake's voice caught in her throat as she fully turned and got her first look at Nathan's erection. His red cock now extended much further from his sheath and the tip glistened slightly with precum. It still looked mostly human, except for the red color, sheath, and what appeared to be a small knot at its base. Jake felt a strange sensation from between her legs. It was warm, moist, and aching to be filled. The musky smell emanating from Nathan's rock-hard cock was only making her desire stronger, causing her head to swim. Was she really getting turned on so much by her best friend? Jake felt very female in that moment looking up at this big, strong male with a large cock calling out to her body. Jake couldn't shake the thought of being on all fours, and having Nathan pound her pussy from behind. Doing her doggy style...oh god...doggy style! The thought sent Jake's mind reeling in more lust.
Seeing his friend, now a female anthro-squirrel, stare at his package made Nathan blush a bit and wonder if he was taking this too far, even as good as she smelled. "I mean...only if you want to...you know..." Nathan stammered as Jake sauntered up to him. Jake stepped in front of him and then without warning, she grasped his cock with her hands being careful with the claws. Nathan gave out a loud, startled "yip!"
"Oh, what's the matter - I thought you were a big strong alpha. Seems like I've got you squirming now." Jake tightened her grip a little more as Nathan grunted. He grinned evilly. This was fun.
"Fuck dude! That is soo sensitive!" Nathan was almost ready to explode just from Jake's touch. Jake stood up on her tiptoes to lean in closer to Nathan's ear and whispered softly, "Fuck me Nathan."
Whatever slight hesitation Nathan had immediately broke. He growled as he placed a paw between Jake's legs causing her to squeal and he lifted her in one motion and placed her on the ground in front of him down on all fours. Jake lifted her bushy tail as much as she could, presenting her wet pussy to Nathan. Nathan wasted little time as he lined up his painfully erect cock and slowly thrusted into Jake's opening.
Now it was Jake's turn to yip in pleasure. She had never felt anything like this as a guy. It hurt a little at first, but Nathan rocked slowly to start. Jake soon found herself meeting his thrusts, pushing her butt back against him. Nathan grabbed the base of Jake's tail making her groan more in pleasure.
Nathan continued to push deeper until his balls began slapping against Jake's furry butt. The feeling was incredible. The two continued in this rutting for only a few minutes before Nathan felt a great pressure release and an explosion of pleasure from his cock as he came inside Jake. Meanwhile, Jake felt a similar growing pressure not just from her pussy, but elsewhere. And when she felt Nathan's cock tense and spray his seed, the dam broke and Jake was blinded by pleasure from seemingly all over her body. It was the best orgasm she ever had.
Both friends were now panting from their experience. Nathan tried to pull out only to realize that his knot kept him locked within his mate. Jake yipped again with pleasure and a bit of pain as the knot kept Nathan within her.
"Looks like we are stuck like this for a bit!" Nathan laughed. "That was amazing!"
"Maybe next time you can be the girl!" Jake said with a laugh. Jake had to admit, she liked that so much that it almost scared her. She did still want to return to being a male - but being a girl sure had its perks!