It's a poor substitute for another guy, but quality guys are

Can I get your help? This banana is a poor substitute.

A poor substitute [f]or the real thing

A poor substitute for a real cock, but always better than nothing

A poor substitute

[f] Remembering Daddy’s hands around my throat…. The leash

💕👰 WIFE'S PILLOW is a poor substitute for a hot femboy

(39) Doing my best, but my hand is a poor substitute for you