sure! some people that gro sog (sea of green) plant 3-4 per pot depending on pot size!!it depend's how dense you want to grow but that would be fine for sure! jack
I done it it works but doesn't work great it was like the 2 plants became one and since they were different seeds my one plant basicly ate the other one lol
the plants will live and produce bud but it is generally accepted that sharing root space lowers your overall yield per space used so it's not worth it