Well, if it was not for Jane Ramida, who has something about her so this doesn't look just sleazy, I couldn't watch if even for 5 episodes.
But after 5 episodes, I realized this show just has a wrong title.

It's not Mr. Superstar Hit On Me, it's Mr. Superstar Got Me Pregnant.

He is not hitting on her, he wasn't even flirting with her (if anything, he flirted with her mother a bit), she just slips into his room one drunken night and they have a one-night-stand which happens off-screen.

Then she's horrified that she's pregnant. Her mother's horrified. So, it's more gloomy than funny...

And Pong Nawat, I mean he's still cool, but he does NOT look good with Jane Ramida...

Watching episode 6, everything revolved about the girl being pregnant and that point I already lost my interest.