Well, wonder no more as the 33-year-old has treated his Instagram followers to a very racy snap of him getting all lathered up.
The Celebrity Big Brother star's manhood is saved only by some strategically placed bubbles, which sent his adoring fans into meltdown.
One gushed: "Holy moly I would not be responsible for my actions."
Another said: "His girlfriend is so lucky."
We have to agree. Calum is currently in Tuscany with Ianthe Rose, and judging by the snaps they're both having a great time.
Before jetting of on their holiday, Calum stepped things up in the gym and showed off his progress with multiple selfies.
Calum recently opened up about his relationship with model Ianthe, admitting that he no longer feels the need to chase women.
He told The Times: "I sometimes think to myself, I was so driven by women and sex and naughtiness before! And now, the thought of chasing girls doesn't appeal to me."
But he confessed that his problems haven't totally gone away, adding: "I know there are demons in there. I know I can go and cheat. There are some things to me that are my dad."