SILKS-087 You won't know until you try

Junya and Sanae are a fresh couple who just started dating. Everything is going smoothly, and today is their first sleepover and first time having sex!?... Just as they were getting excited about it, Junya says, "We can't have sex." Unable to ask for the reason, they awkwardly get into the same bed. Sanae at least wants to sleep while cuddling, but then she feels something incredibly hard and large against her waist...!