Look.

Ossie's trying to be normal about this.

But the immediate look of delight that crosses his face is only barely wrangled into submission.

"And you were thinking of giving one a try, then? You could use any of the bedrooms upstairs if you wanted to get changed- my costume for later is a surprise, of course, or else I'd join you."

Radiating warm acceptance and non-judgement as much as he physically can.