to feel a bit sick because...

[ElleBing]

DH has just come downstairs from his bath and is now draped across the sofa in just a pink towel wrapped around his bottom half in what I think he thinks is a sexually alluring pose?

It's not sexy, sweetie. It's a pink towel and you're draped across the sofa like Peter Stringfellow. This is not making me want to have sex with you.

AIBU?

my dh also does the towel thing! bizarre!

sometimes he just does a quick flash of his bits and that is supposed to make me interested.

So, OP, I presume things moved on from there?

BTW, the Stringy Fellow link made me choke on my morning coffee. Vile, vile, vile!