Marine captures Shishiro Botan and Marine makes her part of his rear treasure (Patreon)

The part with a belly won't take long for it to arrive.

Meanwhile here is the version without belly: https://mega.nz/file/LZIXXSib#Cf-H3aNAh-xBazNdRIwNtJYjaxJ8eZxyXLBWlssQFmc