It was just too tempting, seeing Lauren there and knowing you could take more of her parts. "Might as well go big though." After many minutes of detaching and reattaching; you look down and examine yourself. Now, you had Lauren's entire lower half, her E cup breasts, and her supple lips and mouth on your face. "Ooh, I'm feeling hot." You say, now speaking with Lauren's voice.
Basically, you now owned your older sister's best parts. Lauren's bikini no longer fit her body, since the parts that would fill it out were attached to you. You just grab the bikini pieces and slid them off your sleeping sister, then slipped them on your body. "Oh my." You moan, enjoying the feeling of the smooth fabric gripping your breasts and ass and rubbing against your nipples and pussy. You also slid Lauren's flip flops on since you had her feet as well. "See ya later, sis!" You smirked and walked inside. Lauren's parts on you swayed and jiggled in a feminine manner and feeling her flip flops slap your soles with every step was beginning to have an effect on you. "Y'know what, forget Lauren. I'll keep these parts of hers." You decide, heading up to your room to deal with these pleasurable feelings.