While I was in bed with a cold, my JK sister said I looked lonely and lay down next to me. I couldn't help but get an erection because of her nice smell! When I was secretly masturbating, my sister noticed and said, "Have you been building up? I'll help you get it out," and gave me a handjob and a blowjob, but I couldn't get it off easily, so my sister, who was getting impatient, said, "I can't put it in, but I'm okay with just rubbing it!"