It's just a joke, stating the stereotype of RD being a lesbian.
well yeah, but isn't that RD in the last panel, and RD as santa in the second?
The Santa in third panel is Applejack. Hair is single colored and has freckles.
Oo! ok! i get it now. but why would she only give out RD stuff?
She wouldn't Rainbow Dash would. It was her in the first panel
Argh... ok.