When I asked my local slut sister to have sex with her, she immediately rejected her, saying, "It's absolutely impossible." I couldn't give up and negotiate, "I'll just leave my panties on, so I'll let you dry sex," but my sister, who felt sorry for me, reluctantly, was OK! I was so delighted that I rubbed my dick against my sister's panties that I naturally felt better than masturbating and ejaculated a lot! Just as I was thinking, "I'm getting mad at you," my sister saw semen and had a slutty switch on, and took off her panties and asked, "Why not try putting them in?" and turned into a slutty woman and asked for a dick!