息子の同級生の男の子と『自分と同じ身長になったら童貞をもらう』約束をしてしまったシングルマザーのお母さんと、友達のお母さんに一目惚れして10年後結婚するまで押しまくった男の子のえっちまんが描きたい

I want to draw an erotic manga about a single mother who promised her son's classmate "When you're as tall as me, I'll take your virginity" and a boy who fell in love with his friend's mother at first sight and stayed true to her until they were married 10 years later.