Me and You, In the Future

Severus Snape and his new best friend (M/N) (S/N) accidentally travel to 1992, September 2nd.

Simply to fix a plot hole half siblings (you'll understand when you get to that part)

Key
(M/N)=Male Name
(S/N)=Sirname
(H/C)= Hair Colour
(H/T)=Hair Texture (don't be specific. Use "tight ringlets" or "curly, wavy straigh," etc. Harry wouldn't know specifics about hair texture. Neither do I.)
(E/C)= Eye colour
(S/C)= Skin Colour
(H/C/R)= Hair Colour Reference (Brunette, Blonde, Redhead, etc.)
(G/S)= Gem Stone