A friend wants to come stay with me for a couple of weeks while they're doing some work experience (travelling from up north to down south). I can't manage it as am pretty busy during that time (it's at quite short notice - 3 weeks).

They have now asked if I can ask a couple of my friends if it's possible to stay at theirs at all - they barely know my friends and have only met a handful of times.

I don't want to put any pressure on my friends by even asking them - I put myself in their shoes and might find it hard to say no.

How do I politely say 'I'm not asking my friends'?