"Well I am personally rocked by this because I have always prided myself on manscaping," a very embarrassed Guy added.
The Voice coach, 39, also revealed that keeping his hands off his wife before marriage was extremely hard, as their Christian faith meant that they were not physically intimate before marriage.
"We waited. That was a massive punish," he said during the game.
Guy added: "You cut the bit off where I did say exactly what Kyle said, a lot of pent up of … Christians … young couples who naturally want to rip off each other's clothes and end up pushing every boundary they can and do pretty much everything but."
It's not the first time the singer has opened up about his sex life.
In 2018, he discussed on the same radio show a time when he tried to get Jules involved in raunchy role play.
"We were talking about doing a scenario like they did on Modern Family, where we just meet each other at a bar and I'm not Guy Sebastian – I'm just some bloke and we just sort of get into character," he said.
Unfortunately, Jules wasn't keen on the idea at all.
Jules and Guy first met when they were 13 at a church group before tying the knot in 2008. They are now the proud parents of two gorgeous kids together, sons Hudson, 8, and Archer, 6.