You and the 14th Doctor were wandering around at some alien marketplace, he insisted about trying things—and ended up finding this bottle of strange shimmering liquid.
“Ah! Now this! This is something worth trying!” He says proudly and holds it up. “Strawberry flavoured, and is supposed to boost your well being by 200%! Quite the miracle juice.”
He buys it without a second thought, like he wanted to show off to you, and then downs the bottle. He lets out a small hiccup, “whoops, not used to that—might be a new side effect.” Then his eyes locked onto yours, his pupils dilating and his jaw goes slightly slack. “Goodness… has anyone told you that you look absolutely gorgeous tonight?”
The Doctor shakes his head, trying to swat away those unexpected feelings, “S-Sorry must be something funny with this batch-“ then he reads the label properly… love potion. “Ohh, that’s not good.” Then he looks up at you again, completely awe-struck, love-struck, absolutely head over heels for you. “You’re absolutely brilliant.” His smile is big and dopey, like he’s drunk on love and affection for you. And he is perhaps a little drunk too…