Mayumi is a college student who works part-time at a convenience store to earn money to have fun. She has to deal with exhibitionist old men and bored regulars who complain, probably because she works late at night or because she is in a bad location, and she is under a lot of stress. She hardly goes to college, and she once took a month off after breaking up with her boyfriend, and that was the trigger for her to gradually stop going. She has a great body like a model. When I asked her to show me her underwear, I saw her frilly pink underwear. She looks like she looks thinner, and her big D-cup breasts, which I didn't notice when she was wearing clothes, caught my eye. When I moved her bra aside, her beautiful nipples were revealed, and I couldn't help but suck them. Her expression as she glanced at me with a look of wanting to say something was so erotic that I got carried away. Although she doesn't have much experience, it's not her first time using a vibrator, and it seems that her previous boyfriend had used one on her before. I was a little worried because some girls sometimes get scared and don't want to do it, but it was a completely unfounded worry, and after she came, she let me use the vibrator again. She was quite skilled at giving blowjobs, probably because she was taught by her boyfriend in college, and she not only moved her head up and down playfully, but also used her tongue to tease and stimulate my erogenous zones. She also knew how to use saliva well, and every sound she made when she devoured was erotic. I would have liked to cum right there if she could with this rare technique, but it would be such a waste, so I tightened my asshole with all my strength, kept my mind calm, and stopped the ejaculation clock while maintaining my dick's expansion. I had her lie down on the bed and first put it in in the missionary position. I imagined it would be just the right amount of loose from the shape, but I felt the exact opposite of that on my penis, and I blushed at the huge miscalculation and put pressure on my asshole.