"Oh yesss" came from the next room, and Jenn started to unbuckle my belt, then opened the button and unzipped me. My pants dropped, and since I had no underwear on my cock immediately popped out, already stiffening in anticipation. I started to lift Jenn's dress, but she pushed my hands away and kneeled down in front of me. With her hands on my thighs she slowly moved forward, opened her mouth and slid the tip of my cock in. I was already erect, but her licking and soft sucking brought me to bone-like hardness. She was treating it like a lollipop, licking it from one side then another, putting it all in her mouth and then sliding it slowly out sucking as she did so. Each time her tongue moved over the especially sensitive spot on the underside it induced a spasm, muscles clenching making the whole cock throb. She clearly enjoyed making this happen, but she kept changing the stimulation she was applying.
There were more sounds from the neighboring room. I guessed the layout probably mirrored my room, so the bed was against the wall we were near. "Keep doing that ... oh fuck yes... right there... right there... " we heard, making me think he was licking her pussy. Jenn looked up at me smiling as she sucked, her eyes sparkling with enjoyment.
As the moans got more frequent next door Jenn's motions became more deliberate, one hand moving up onto my shaft and pumping it, and the other playing with my balls that were already pulled up and quite tight in the sack. Her head moved steadily back and forth, giving me the sensation of really fucking me with her mouth. She moved her tongue, altering the sensation somewhat depending on where it was. I think she heard the urgency in the moans next door and applied even more suction on me. A series of sharp cries next door signaled the girls orgasm and that put me over the top.
"Oh god Jenn I'm gonna cum" I moaned, a little more loudly than I intended. She continued and within a few seconds the first jet of cum shot into her mouth, "Uhhhhh" I gasped loudly with each successive squirt. Finally after six or seven my balls were empty and the spasms of my orgasm stopped. Jenn very deliberately swallowed, then wrapped her fingers at the base of my cock and stroked up slowly, producing a last bead of cum at the tip, which she licked off. She stood up and kissed me with lots of tongue, leaving the faint taste of semen in my mouth.
Next door was quiet at that point. I pushed Jenn back toward the bed whispering to her "I wanna make you cum now!"
She laughed and kissed me again, then whispered back "You already did ... you just weren't paying attention. When you started cumming in my mouth, with the sounds from next door I came too. Not as big as the last few you gave me, but definitively an orgasm."
"Oh no, no, that doesn't count." I stepped over to the bed and quickly tossed all the extra pillows to the far side, and then pulled down the cover. I stepped back to Jenn, and as I embraced her pushed her back toward the bed. As her legs came into contact with the edge of it she flopped backward onto it. I reached over and lifted her dress, then slowly pulled down her silky little panties as she extended her legs to let me take them off. "These seem a little damp?" I commented.
"You do that to me you know." she replied matter of factly.
I spread her legs apart, exposed her dark furry patch to my lustful eyes. I pulled her slightly forward so her legs were over the edge of the bed, then knelt between them and bent over to kiss my way up her thighs. As I got higher she spread her legs further apart to give me access to her honeypot. I kissed her mound, then with both hands spread open her vulva and licked slowly from bottom to top. Jenn moaned softly, and I licked again but taking more time to sample all the parts as I moved slowly up, ending with an extended lick over her clit. I pulled back and licked my lips, looking up at Jenn as she looked down at me.
I had stopped paying attention to the room next door, but as we paused briefly I could hear a slapping sound, with a slight squeak of the bed and thump against the wall. It was pretty clear at that point that they were fucking.
Leaning over again I spread Jenn's pussy again and stuck my tongue as far in to her slick hole as I could, and moving it up and down, my nose was right near her clit. Her scent was amazing, subtle yet like pure distilled sex. As I moved up again I started to focus my tongue on her clit, and moved the first two fingers on my hand up to the vaginal entrance. As I circled her clit with my tongue I pushed the two fingers up into her, eliciting a distinct moan of pleasure. I played with her hard little bump with the tip of my tongue as I slowly pumped my fingers in and out. There started to be moans from the girl next door as the steady rhythmic slapping continued. I gradually increase the pressure of my tongue, and started to curl my fingers upward, rubbing where I hoped that mythical G-spot was, still pumping them slowly in and out. I started to suck on Jenn's clit instead of playing with my tongue, which caused a distinct gasp. The slapping noise next door was increasing in rate, accompanied by "Ungghh, unggh" kind of moans from the boy. Maybe a minute later the "Ungghh" changed to a slightly higher pitched "Aahhh" with slightly slower but louder slaps as he seemed to thrust hard against the girl, I guessed shooting his load. Just as he finished Jenn let loose, bucking against my tongue as I kept fucking her with my fingers. She cried out loudly over and over as she also came hard. When she finally slowed her movements she reached down and pulled me up and onto her, giving me a deep kiss. We could hear laughing next door, it was not clear if they were laughing about their fun or ours - since we could hear them I was sure they could hear us too.
"You taste and smell like pussy." Jenn said as she kissed me again and again. She reached down, moving her hand gently over my balls and then up to my cock. "That was fun. We better clean up and check out before you get charged for another day though." Her hand was wrapped around my cock, which was stiffening again. "Save whatever thought is making that happen" she said, "if you can wait for a little while."
"I'll try" I answered. We showered quickly, grabbed my bags and headed back to her (to become our) apartment.