No girlfriend... unpopular me, and my daily routine is masturbation. My sex drive's the only thing that's healthy, so it's basically every single day. My sister-in-law had secretly been watching me the whole time! Then one day she lectures me: 'If all you do is masturbate you'll turn into an idiot!' And then proposes a solution for my masturbation addiction: 'Let's have sex.' Wait, seriously, is that okay? While I'm still confused, she gives my cock a blowjob! And with my sister-in-law taking the lead, things keep escalating further and further! I even got to experience my dream titty-fuck, and a creampie too! I don't even need to jerk off by myself anymore! Since I've now got someone in the family available for sex anytime, I'm officially graduating from masturbation!