"M-Maybe later." Dess replied, face bright red. "N-Not in, um, in p-public..." The teenaged girl stuttered out. "I-It's emb-barrassing enough just being in th-this position with someone..."
Jeff shrugged in response. "Alright. If you say so." Crouching down, he prepared himself to crawl inside. "So then, no reason to delay, eh?" He asked, watching as the girl gave him a nervous nod. Taking that as his cue, Jeff took a deep breath, spreading the lips of her vagina as he leaned in. He could smell the girl's arousal as he readied himself, quickly reaching into the pocket of his discarded pants for his phone, in case he needs some entertainment during his time.
Another deep breath. Three, two... One. Jeff moved forward, crawling inside the girl's crotch. He felt the walls convulse around him as he entered, tensing and contracting. It was incredibly tight, a result of the girl's virginity.
He could hear the girl moaning, the cavern moistening and growing even tighter around him as he pushed forward, trying to squeeze in despite her body doing its best to keep him out. Further and further he went, until finally, he found the end - Dess's cervix lied before him.
Reaching forward, the walls clenched even tighter around him, as he tried to pull the cervix open and squeeze inside. It was even tighter than the tunnel leading to it, but his head popped through the opening, followed by his arms, which quickly lead to his shoulders squeezing in. From there, it was basically free.
He could hear Dess's moans and pleasured screams grow, feeling her body contract around him just as he made it fully inside of her. The inside of Dess's womb squeezed him tight, forcing him into a fetal position. Jeff couldn't help but feel his own arousal, already at a high from before, grow even higher as a result of his position. He settled in, the womb remaining contracted as he heard Dess calming from her climax.