Would you advise to feed your ball python two mice?

And if so, what sizes? My bf and I fed our baby two hoppers,
someone who has had ball pythons for a while said that if
he is still hungry that he will go for the second one... and he did

But I was wondering if that is healthy for him?
Is it possible for them to become overweight?

We bought him as a juvenile from the pet shop,
fed him a pinky the first week (two days after we got him
since the pet shop told us when he last fed), then a hopper the next,
and did two hoppers the following week.
This Friday will be his third feeding from us.

The first hopper we bought him was a bit smaller than
the thickest part of his body, that's why we decided to buy two
but I think these 2 hoppers were at the end of their "hopper" stage.


I just joined the forum and will post pics on my profile,
I would now but I'm at work...