You look down at your sister's body, she inherited quite a lot from your mother causing her to be very well-endowed. Her breasts were large; like your mothers but a bit smaller, the black dress perfectly showed off her amazing figure as you began to rub down your new ass. “Woah, nice ass Charles. Have I been ignorant all these years or what!” you grabbed a handfull of her ass through the thick fabric while also beginning to massage your breasts.
Your sensitive nipples began to harden as you rubbed your breasts until the were poking straight out of the dress, “Let's take a peek, shall we?” You pull down the top of the dress to reveal no bra just large breasts and hard nips, “hehe, Charlotte you naughty girl! Wearing no bra like a slut” you immediately start twisting her nipples sending pleasure all over your body. “OoOh~fuck yeah!” you moan as you clench your breasts while also sending a hand to slip off your panties...only to realize Charlotte had no panties on making you smirk. You stop your schenanagins for a second as you you walk over to the up stairs window to look out at the party. You see your mother sitting in the corner scowling and your sister kissing some guy in the pool, your new mother was now outside and enjoying all the looks from when she was getting; you even saw her dramatically throw off her towel and place it on a chair so that her ass was slightly exposed.
You slide a finger in your pussy as you watch what was going on in the backyard until you heard a noise behind you causing you to stop and pull the top back up so your breasts weren't peeking out anymore. You turn around just in time for...