oK
Harry- bisexual/biromatic
Robin- homosexual/homoromatic
Manny- hes like fucking six guys
Paige- pansexual/asexual
Tony- biromatic/asexual
Shirgnold- panromatic/homosexual
Colin- I FORGOT THE TERM WHERE ITS THAT YOU RARELY/DONT PREFER HAVING SEXUAL OR ROMANTIC FEELINGS IS IT GREY-ACE??????FUCK
Gilbert- homosexual/homoromatic
Laptop- Hetrosexual/hetroromatic
Steven (meat man)- Hetrosexual/homoromatic
Sparsh- bisexual/biromatic
Brain (bread son)- again hes like really young in my headcanons so??????????????
Lamp- idk man he would fuck a horse if he wanted to

NOW.FOR GENDER
Harry- cis
Robin- cis but maybe nonbinary?
Manny: he doesnt k n o w hes like fucking s i x
Paige: agender uwu
Tony: cisgendered
Shirgnold: afab trans boy ouo
Colin: cis
Gilbert: cis (but debateable ig?)
Laptop: cis
Steve: cIs
Sparsh: maybe bigender?
Brain: AGAIN HES A FUCKING BABY
Lamp: he could have a toy horse as his gentalia who fucking knows ok