Wait. Is it another guys cum? Or are u just getting him started.
You realize that if he cleans it up & swallows it, you have yourself a cuckold.
You need to find yourself a few bulls to fuck you good. Even if they use a condom, you can tie it off & bring it home & feed it to him.
I had a gal I saw for years who did that. Hell, she'd refrigerate them to save them when we had a long weekend of fucking. Then she'd heat them in hot water before she made him take the loads.
She even jerked him off into a used condom. He begged her to let him cum. Then she fed him both loads from the 1 condom. Very hot lady.