I'd think it depends both on whether the sapient alien cares/notices that this specific activity is qualitatively different to say, eating, which most humans are happy to do with others around/watching them, and also on how the humans involved in the sex feel.
I don't particularly like the cat being around when I'm having sex - if nothing else she's a critic of technique and tends to make her objections felt, with her claws.
no subject
Date: 2007-08-01 08:20 am (UTC)I don't particularly like the cat being around when I'm having sex - if nothing else she's a critic of technique and tends to make her objections felt, with her claws.
Hmm, my answer seems to be - it depends.