Swifty...Swifty?!
SWIFTY!?!!?!
Hello, brother/sister-whom-I've-never-met...
The answer to your question is 3, unless you use an item from barter which gives you 4. The item costs apples.
Also, your female must have high maternal and the male must have high charisma :)
Also, is your name a coincidence or WHAT?!