It had been a long road trip, you and your big sis were both tired and decided to stay in a hotel to sleep but, you couldn't you looked over and saw how perfect she was for you.. maybe she wouldn't mind if you jerked off to her
2B would blush as the large monsters ravaged her, molding her insides and impregnating the bot till she couldn't fit any more, after that happened 2B panted "T-That was so fun.."