Yes, it was. The Commodore 128, for example, was even capable of displaying extremely short (probably 30 frames or so) hardcore porn loops in what was likely MCGA or the equivalent. I can say this without consulting manuals or spec sheets or anything but being a horny wee geek and seeing my first penetration on my neighbor and fellow adolescent nerd's little TV screen, after waiting a half hour for it to load from a floppy drive (pun intended). We felt like sophisticates at the Playboy Mansion.
Also I think I had one monochrome low res boob pic on my Apple IIe, which I hid from my parents like a serial killer hides his special trophy room, at least until I found the box of VHS tapes with the labels torn off under my grandpa's bed. After that, green boobs at like 120x60 resolution or whatever it is wasn't very exciting anymore.
So, yes. Yes, it definitely was. :-D