Jeniffer licking her lips once again grabbing Jeff by the balls and dragging him across the carpet. She then rolled over onto her back giving her brother a nice view of her nude sweat drenched body with a bulging stomach of his own cum.
Involuntary you let out a small spurt that landed right in her yawning mouth. Jeniffer swished the seamen around in her mouth experimentally before swallowing with a satisfied mmmm.
“Yep, even tastes like the real thing.”
She then dropped you right into her mouth. You felt her lips clamp around your shaft and began slowly sucking you. At the same time her slimy tong got to work playing along your throbbing head. She wormed her tong into your foreskin. She slowly unrapped your body like she was unraveling a candy bar with just her mouth. Despite just climaxing you felt another one building up. Your sister definitely had practice sucking dicks, for a second you wondered how many cocks had been here and who’s, before realizing it didn’t matter, you were here now. And no cock before you had ever gotten a first person blow job in here.
More and more her lips and tong played along your length, until finally you were on the edge of bursting. Despite wanting to remain in this heaven forever, eventually you can no longer take it and spew out all your remaining sperm in your tanks. You cum more in this moment than you ever had in your entire life directly into your own twin sisters mouth.
Surprisingly she doesn’t let a drop of your baby batter go to waist, gulping it all down like a gallon of milk. You watched her swallowing all your cum, growing harder in the process till finally she swallows you as well.
You felt the walls of her throat envelope you like a warm wet sleeping bag, her muscles pulling you in deeper into her guts but you were in too much bliss to care. A mixture of saliva and cum lubricates your body sliding further and further you went down your sisters pipe till finally you fell out and landed in a lake of your own cum floating on the top.
Jennifer let out a loud burp and rubbed her extended belly satisfied.
For a while you layed there swimming in your own cum, until suddenly You felt everything begin to slosh to one side as Jennifer stood up and started walking. Even from inside you could tell she was having some difficulty and you briefly wonder just how big your sisters belly was.
You also wondered something else…