My childhood friend, Marin, who is one year older than me, has excellent grades and often comes over to my house to get help with my studies. I recently became interested in SM play, so I told her about it, and she asked if I wanted to try it... Yay! First, we played bondage with cotton rope. I tied her up in an embarrassing position, and she already had a stain on her panties... When I teased her with a brush, her naughty juices started to flow. I got excited too, so I couldn't help but put my dick in her mouth...
