I was so bad at kissing that I couldn't even have sex with my girlfriend. Her sister, who knew about this situation, teased me by showing me her saliva-covered tongue! "I'll teach you how to kiss properly," she said, and suddenly started kissing me! She licked my whole body and sucked my dick until it was soggy! Our tongues intertwined, and every time she transferred her saliva to me, my feelings for her and my reason collapsed! I even came inside her like crazy, and now I can't live without her lips and saliva...