Phuket in Thailand perhaps? Goa? Depends on what you are looking for. There are also the Caribbean Islands. Three very different destinations.
Having just come back from Rio I know the weather would be good and it is certainly lively!

Hi Fiona, thanks for for your reply. its me and my boyfriend that are going, we want to be able to chill out during the day and sunbath, and somwhere he can watch football (gives me a bit of piece)! then at night we want to be able to go out where its lively or just chill out. we booked for mexico, and booked for a presidential suite, which if were not able to go to cancun, i think he wants a hotel where we have a jacuzzi. we have looked forward to our december holiday all year, and want it to be a bit special!

thank you
xxx