Both
From Torg Adventure
You decide to tackle both of them, a best of both worlds sort of thing. You'll actively work on your sister, but if the opportunity to pursue your mother arises again - you'll take it. Decided, you head out to find Doe. You had just barely gotten your hands beneath Doe's bra when your dad lets you know he and your mother are going out for the evening - something they've been doing a lot the past few weeks. And you have a fair idea what it is they are doing, given the rhythmic pounding of their baseboard against the wall you share every night. Hell, given all the sex they've been having you half expect to find yourself with a younger sibling one of these days.
Your parents are barely out the door before Doe is all over you, kissing you deeply as she uses a hand to work at your belt buckle - guess all this pent up tension hasn't only been affecting you. Closing the door to your sister's room behind you, you lock your lips on hers, you quickly pull at the blouse covering those lovely mammaries of hers - it quickly yields, exposing a rather naughty red lacy bra. Doe isn't that far behind as you realize your own pants are down around your ankles - you kick them off. Pulling her top the rest of the way off, you unsnap her pants and slowly work them down her hips - before they too join yours unused in the corner.
Taking control, you push Doe back down on her bed - taking in the amazing sight of your sister, her matching red lace bra and panties creating a deep contrast with her pale skin. Leaning down between her hips, you push the silky fabric protecting her pussy from your view aside and start to run a finger up and down along her groove. She trembles slightly in anticipation, her breathing growing more ragged. Within a few moments Doe's cunt grows slick with her juices, the most intoxicating of pheromones filling your mind - you remove your fingers and replace them with your mouth.
Your tongue darts in and out, exploring every crevice of your sister's pussy. Doe opens her legs further unconsciously, allowing you even great her access to her depths. She pushes her hips up against your face in time with your actions on her body, and before long she is quite near cumming. Not letting her have the release she has been craving for the past few hours, you slowly lick your way up her body.
As you reach her breasts, you pull sharply on the bra - tearing it clean off her body. Her c cups jiggle forth, free from their confinement. You kiss over to a nipple and take it between your teeth - it had long since grown hard under all the stimulation Doe had been getting. She moans in approval, pulling at your hair with her hands so she can kiss you face to face. Taking a free hand, you begin gently rubbing your pre-cum covered cock along her pussy lips before she breaks your kiss.
"Wait…" she manages to get out between breaths, herself on the verge of orgasm. "John. I bought some condoms… when I was out, earlier…" She reaches into the night stand right next to the bed, and pulls out a box of Trojans.
Rubbers - gotta hate 'em.
