Saturday morning, I wake up to find my senior from work, Karen-san, right next to me...! Wait, did we actually do it last night? Karen-san is fast asleep beside me, wearing sporty lingerie that shows off her cleavage and the curve of her ass, with her pussy completely exposed. I didn't notice last night, but you were wearing that kind of lingerie. Ahh, so erotic. I can't help but get a massive morning wood. One time or two, it doesn't make a difference... "...Wait, what are you doing, ahhn!" The combination of her beautiful waistline and that lingerie makes me feel like I'm about to cum, so I just slide in raw. Pounding her pussy right after she wakes up, one, two, three times... I couldn't hold back and creampied her. "Ah, no, I'm cumming!!" I get even more excited seeing Karen-san cumming like crazy from my cock even though she has a boyfriend. I completely forgot about my plans and just fucked her all day! Seeing her in such a hot, different light, I pounded her until my sperm ran dry, cumming 12 times! With unstoppable, wild piston fucking, I creampied her over and over again...