The main purpose of this thing is contraception and disease prevention. Based on this idea, here are a few.
Have fun. Don’t worry about getting pregnant, just have fun.
Indulge. With protection, you can relax and enjoy the joy of clouds and rain.
Love deeply. I understand. . . . . .
The joy of clouds and rain. That means sexual intercourse.
Funny version.
Bodyguard. Protect both parties from getting sick.
Unparalleled. If you don't get pregnant, you will have no children. It can also be understood as having no worries.