This isn't actually a story, but an idea I came up with. It's up for adoption if anyone wants to write it, just please give me a little credit and message me so that I can read it! Here we go!
Basically, Arthur is attacked by a larger knight or lord or something in that manner. He is raped. Merlin sees the knight/lord/thing raping Arthur and either knocks him out with a punch or threatens him with a sword or something. Either way, Arthur gets away and refuses to tell his father out of embarrassment. Merlin agrees not to tell anyone
The next day, Merlin is pulled before the king. The knight/lord/thing claims that the servant attacked him for no reason. Merlin denies this, coming up with a lie about the lord attacking him, not Arthur. Uther refuses to accept the word of a servant over that of a noble, so he punishes Merlin with lashes or something in that manner. Arthur, realizing how serious the situation is admits to being attacked by the knight/lord/thing. Uther thinks he is lying to protect his servant, seeing how he is Camelots best knight and couldn't be beaten by the knight/lord/thing in a fight. Arthur tells him that it was not with swords, but that he had been sexually attacked. Uther is furious and punished the knight/lord/thing. (I don't care how, it's up to you.)
The ending is up to you. Merlin and Arthur can have a bromance bonding moment, there can be a son/father moment. I don't care! I really hope someone writes this because I can't wait to read it and I'm lazy! Please just send me a message when it's done.