"It's no good, you shouldn't be so nervous even though you have a girlfriend..." Since she found out I have a girlfriend, tutor Arina-sensei has been tempting me with whispered lewd words while I'm studying, and she keeps fiddling with my nipples. It's like the feeling of getting a new toy, and I'm grinning like a lewd woman. If this continues, my head and dick will become stupid. Please help me.