My (30F) bf (30M) went on a work trip, and I saw the hotel bill.

So my bf of 3 years went on a work trip last week. He was out of town for 3 nights and 4 days. I didn't ask, but he showed me the bill from the hotel he stayed at and said "look, they charged me $40 for a late checkout, and I didn't even ask for one!" I looked at the bill, and the 'incidentals' section included a charge for adult entertainment. I was like 'what's that?' and he said it was probably some past due amount and the hotel charged his card 'just in case' and that it will be removed when they review it. I looked at the 'details' and it was from a channel called 'Barely Legal' and had a time stamp. <br><br>I really don't want to think the worst and I know he has been faithful and I trust him. I prefer to think that the hotel is guilty of overcharging him. I also really don't want to ruin his time by asking him but this whole thing is really bothering me. What do you think? Should I go ahead and ask, or should I drop it?<br><br>Tl;dr - saw hotel receipt with charge for adult entertainment. Should I ask about it and risk sounding accusatory, or ignore it and keep thinking about it?