Thongs!

Newly discovered:

Sir likes thong underwear.

I mean, he really likes it!

Sir has never been one to put really any stock into lingerie or sexy dress - it's never done anything for him (to my everlasting frustration when I want to look sexy for him). The other night, I randomly put on a thong and he had a very positive reaction.

He likes that it leaves my butt bare for his attentions.

So, I can add this to the list of being nude, the apron, and wearing knee high boots to "Clothing related things that turn him on".