Is Lucy hetero if she's also ace?
Yes, because shes strictly romantically attracted to men.

My mo friend hit on that hetero over there.

man i just had some great hetero sex.
That's so hetero.

tv is so hetero these days, it's completely worthless.

girl: i love my boyfriend! i want to cook, clean, and feed him. he's the love of my life! i would never turn lesbian, i love penis tooo much.
gay friend: you're so hetero.

guy: i'm afraid of commitment, i'm not ready to move in with my girlfriend of 6 years.
gay friend: you're so hetero.

Man 1: Dude, did you see his ass?
Man 2: You're so gay!
Man 1: Hetero.

oh my god he's so hetero