The one belonging to the Life Sciences department is a serious and research-enthusiastic female engineer. She's pure and beautiful. After class as usual, she stops me. Says she wants to continue the experiment... or something. The quiet her suddenly invites me into an empty classroom. Continue the experiment from earlier? As I was thinking that, she touched my hand and arm while checking my reaction. Before I knew it, she reached out to grab my dick. "What kind of reaction will he show?" She played with my crotch while jerking me off, naturally took off my pants, and even gave me a blowjob... I thought she wasn't interested in sex at all. But apparently not. From that day on, secret experiments between just the two of us began. Tied up and forced to expose myself, I let her suck, lick, and fuck me... for more stimulating reactions, she used an aphrodisiac and fucked me... over and over again, making me cum in this so-called experiment. Through her, I started to experience new things and my sexual preferences kept changing...
