Mutual abstinence: A 2cm intercourse between a student who should never have sex with her

A forbidden love between a student and a teacher. They decided to stay in a platonic relationship until they graduate. However, the two young people are driven by their sexual desires, and gradually escalate their physical relationship, such as if they only kiss, handjobs, blowjobs, or just dry humping. "Teacher...If it's just the tip, it's not sex, right?" I was supposed to have just inserted 2cm of the glans, but I couldn't resist the pleasure and thrust it all the way to the roots. The two, who are instinctively sought out each other's creampie sex...