Aww, that is so precious! Polly who's with my mom across the country LOVES belly rubs. Genever who is with me does not. She lays like that as if to say "Come and get it!" but then attacks your hand if you touch her tummy, which you have to do because it's too tempting!
Lucky for me I've got her pretty well trained so she just grabs my hand and licks instead of bites.