A Great Night for a Twixie
I gave this a go since my internet search for good "twixie" stories has been a bit disappointing so far, and i think trixie and twilight are fucking hot together and should do it. often. in front of me.
Ultimate Furry Crossover: An Adult Choose Your Own Adventure - Entry 51
To either side, holding twilight's leg up with their magic, starlight glimmer and twixie lulamoon were working their horns in and out of the fallen princess' tender holes, still badly stretched from the abuse she'd taken from sombra's 'scepter.'