Can A Boy Wear UGG Clic Tall Boots?

My boyfriend ( we are both 14 and live in Buffalo where its cold) wears the UGG Clic short boots. He has them in Chestnut for all the time wear and the Camo colors(brown/tan camo and blue/gray camo) for hunting. He plays street hockey with his friends and wanted to borrow my UGG Clic Tall boots. I told him "no" because I was affraid he would ruin them.I know the Clic short UGG boots are basically "uni" and come in both mens and womans sizes but the Clic Tall boots only come in womans sizes.My b/f does NOT tuck his jeans into his UGG boots (it does look gay even though shoes don't determine ones uality) but wears bootcut jeans over his UGG boots so basically you can't tell if he has the Clic short or Classic Tall UGG boots on. Girls Im gonna ask you to help me out and try on your UGG boots and put your jeans over the UGG boots and give me your opinion. That is how my b/f looks when he wears his UGG boots.Do you think it matters if he's wearing the tall UGG boots to play street hockey? Im thinking of buying him a pair in chestnut for christmas.