Is there any way I buy or make an atachable penger seat for my small gas scooter?

I have the xg 505 by extreme scooter its a 50cc 2 stroke gas engine it has a seat but its a wide bicycle seat only good for one person. So does any one know a website that might sell a seat kit for a penger so I can take the one i got now nd attach it to the seat post? That bike seat I got now is only good for one person, and I know what you all are going to say" that its only meant for one person" But I am full confident it could haul 2 people. If a pedal bike can why not a gas scooter? So is there a posible way for mounting a bigger seat that will be long and wide; Basically have enough room for me to sit and the penger? If I wont be caring pengers I will have more room for me and my bony ***? Yeah I am one of those men who don't have its like a line going straight down my back. So the big seat will help from my bony *** from getting sore. So if anyone knows a particular site the sells a penger seat or a big long and wide seat with enough room to seat two let me know? Looking forward to hear an answer. Thank you.