putting on a tough guy act in front of my girlfriend, but her sister saw right through me and turned me into her sex slave. the first time i met her sister, she was a beautiful, mature woman oozing with sex appeal. before i knew it, she was playing with my nipples... relentlessly. constant nipple stimulation led to non-stop orgasms, and even after i came, she kept going until i squirted. in a situation where i couldn't let my girlfriend find out, her sister's intense nipple play brought me to the brink of ecstasy, and i became her obedient servant.
