What next from this...

Hi Guys and Gals,

My OH really really loves this: http://www.lovehoney.co.uk/product.cfm?p=22772

It fits well, isn't too big or too small and sits VERY snuggly between her cheeks allowing good entry by myself whilst in place but we are looking for something very similiar but probably the next size up. I can't see anything by LH at all sadly :(

I have got the Doc Johnson Medium Butt Plug which doesn't vibrate but that won't fit her yet so we just want something just a next size up with similiar end and with vibration.

HELP!!!!! :)

Taa x