Two, very clearly male dragons, standing next to the dinning room table, and on the table the bottle of candies he had forgotten to take with him...
If it weren't for the tattered suit and torn school uniform on them he would have never have guessed the two dragons were his mother and sister. He stared at them, mouth agape at the sight of two buff dragons standing half naked flexing their arms. They weren't exactly body builders by any standards, but they looked like they could lift their fair share of weight. Their chests were broad, with a nicely defined set of muscles and six pack on both of them. Behind them both a thick scaly tail slowly swept back and forth, just under a small set of scaly, dragon wings. What he is assumed was his sister stood a bit shorter than the other one at around about 6'6", while his mother was probably around 7'2", and both of them a good solid foot taller than him at least with every inch covered in deep blue scales.
When he finally looked up he met there gaze towards him, seeing those draconic snouts with their well defined jawlines, the slited pupils of their eyes just above it staring straight at him. He saw how their horns curved back from their scale covered heads and all their hair was now replaced with smooth scales instead. Their mouths slowly turned into a smile as they noticed Mark staring.
"Mmm, hi honey~", his mothers masculine voice echoing through the room, "I have to say, those candies you bought are just delightful~". His sister piped up next, "Oh yeah bro, these things are the best! I'm so strong now! Might need to buy some new clothes though, heh." Chuckling as they both raised a scaled claw to tear away the last shreds of their now useless clothes
As the tatters fell to the ground Mark finally notice something he hadn't wanted to acknowledge. The fat, girthy dicks throbbing away between his mother and sister's legs, slowly dripping a clear, viscous liquid onto the floor and filling the room with their strong musky scent. They had to be a solid 10 inches at the least. Not to even mention those cantaloupe sized balls slowly swinging underneath them.
"W-W-Wha....h-how??" Mark just stood there stunned at how proudly they displayed themselves. "Why don't you join us honey, there's still plenty for you too~"
"Yeah come on, you'd make for a pretty sexy dragoness bro~", she rumbled out as she picked up the bottle of candies. "Mmmm, I think she's right Mark, you would make for a very beautiful women. And it would certainly help with these new......urges~" She punctuated that last word by grabbing her dick and slowly stroking it, letting out a nice spurt of pre right onto Mark. "I think he might need a little help Alice, why don't you give him a hand."
He felt rooted in place as he saw his sister approach him, unable to move as she hugged him tight against her flat, scaled chest. Her dick was pressed between both of them, staining his shirt with her pre as he felt it throb with each beat of her heart. He looked up at her and saw her grinning as she raised a clawed hand before pressing it against his mouth, forcing him to swallow a couple of the pills.
Mark coughed as she let him go, his body feeling hot and flush as the pills effects took hold. It wasn't long before he realized that the pills she made him eat were. . .