'Loose' skin nipples - 8 month post op

[Squish33]

Hi guys,
I'm 7-8 months post op now and 75% happy with my results.

Only problem I have is my nipples are still slightly puffy (I had exo+ lipo) but have a bit of a 'loose skin' appearance to them. Kind of like an empty sac and doesn't look as bad when they go stiff and thought they would tighten up with time.
I'm reasonably athletic also if that helps?

Is there anything I can do to reduce this appearance. Lose a bit more weight or bulk up chest.. Or anything like bio-oil that will help?
I REALLY don't want to get involved with some sort of re-construction surgery afterwards. I'm not going down that road again.
Thanks