Starship Terra. Planet of Women, #5

Joshua Miller's Overlord wife Iris upgraded his abilities with something he really liked.  He could make a time bubble so he could step outside of time; he could take his girlfriends to his starship to have affairs.  When he terminated the time bubble, he returned to where he was before with no time having passed. His wives never knew he was cheating on them; they suspected sometimes but didn't know for sure.  Sometimes he took some of his wives up there privately too.
During the workday, he could use the time bubble and have a good time and then come back to his college president's desk. He had another favorite which was his x-ray vision so he could look inside the clothes of attractive young women and see them nude. He had that dream as a young man and it was real now. The nice thing was the women never realized that he could see them in the nude. Iris also gave him a large modern starship that had all kinds of things.  It had a large bridge with strong weapons.  It had a large swimming pool that he could swim nude with his wives.  It also had lots of bedrooms and plenty of android women to take care of everything.  There was also a fast food café so he could get hamburgers and other things he wanted.  It was run by attractive android women. He has a lot of exciting adventures such as battles with the Overlords.
He gained a lot more starships in his battles and soon had a starship fleet of starships and attractive overlord captains. He returned to his original Earth in time to find that an android was heading toward the planet. There are some explicit romance scenes so this novel is only suitable for mature readers.