"Mutual Satisfaction" by Matsu-sensei

That reminds me of a joke in my country

The guy enters with urgency on the elevator of a hotel and due to the speed he enters in the elevator he accidentaly touches the breast of a woman with the elbow

The guy said "If your heart is as soft as your chest, you will forgive me"
The woman answered "If your dick is as hard as your elbow, I wait for you on the room 43"

"he has way more than enough amazing context to fill a gallery"