My male eastern hermann’s tortoise named Hulu has recently started humping this new rock I put into his enclosure. He’s about 2 and half years old (possibly a little older), so I guess he’s finally reaching the age of sexual maturity. I understand that this is natural behavior for him, but I’m wondering if I should remove the rock or not due to fear of him hurting himself. I don’t know the risk of his penis getting inflamed or infected or something due to humping this rock, so I’d like some advice on this matter