My Sister, Who Has Always Liked Me, Is Jealous And Seduces Me With No Bra And No Tits.

I have childhood friend sisters. The older sister is in the same grade as me, The younger sister is three years younger When we were little, the three of us often played together, But as we grew older, The chances to meet the younger sister Mirei decreased When the older sister confessed to me And we started dating, I went to their house to tell Mirei... Huh... wait, isn't this a celebration mood? Her face was twitching Was it like she felt I stole her big sister? -------------------------------------------- When I was invited over again... Huh!? B-b-boobs are about to spill out!? 'Hey, Mirei, what's with that outfit!' 'Eh? Isn't it cute? It's fine, it's Mirei's house after all' Mirei appeared in a super revealing outfit Then she linked arms and pressed her boobs against me It's too blatant, I can't look directly... I see, Mirei liked me all along!! That's why she had that suspicious look on her face. Even though her sister is nearby, She shows off her cleavage and presses her boobs against me to tempt me I never knew she had such scandalously early-blooming breasts... I get a titjob behind her sister's back... At first, I accepted it on a whim, But Mirei's temptations only escalated... While her sister is passed out drunk, she straddles me for cheating sex... This is bad, this is bad! But I don't hate this thrill Even though I know I'm betraying, The sex with Mirei is too pleasurable, and I couldn't stop