What to expect...
3 times the kisses

3 times the lovin

3 times the laughs

3 times the cuddles

3 times the hysterical antics

3 times the worry

3 times the missing them when you're gone

3 times the fun

3 times the mischief

3 times the cute

3 times the most wonderful feeling in the world
My only advice is get everyone neutered/spayed. This will go a long way to having a happy household.