Stepbrother caught sniffing, should I give him a hand?

I was desperately looking for my panties and because I couldn't find them, I wanted to ask my stepbrother. Unfortunately I caught him with my panties in his room. I challenged him but saw his hot cock. Is it wrong to give him a hand? Maybe I should show him my breasts, then he doesn't always have to take my underwear to jerk off.. at least it ended happily ????