Too forced, just have her ask Maeno to bring the print outs ("I asked Maeno if I could bring you instead" and have him shocked Maeno agreed), but having him bring her inside just to avoid a misunderstanding? Quite lame.
Normally with their personality this situation would be a race to see who will jump the other first but the manga is not 18+ so mc will definitely fold unfortunately
Man's gonna fold, and then Mom is gonna come back at some weird moment. We'll have to see if she'll be misunderstood (for now) as his girlfriend or not.