They're pretty compatible relationship wise, they balance each other out. Taurus can ground Pisces in how to approach their dreams, whereas pisces adds the kindness, sweet and sympathetic nature to Taurus. Both signs work well together and create a very feminine energy, with Pisces being the more masculine and Taurus being more feminine. Both signs work well because Taurus is an earth sign, Pisces is a water sign, which inevitably without question flow together with ease. Pisces are the dreamers, who balance out the practical way Taurus goes about life. The best thing about this sort of relationship, is that they tend to harmonise and compliment each other :)
I think the taurus would be dominant since they seem more grounded an there heads aren't always in the clouds.Also people with their sun in taurus tend to be more possessive. Whatever bond they share Taurus always admires the compassionate nature of Pisces.You should also try to find out what moon,venus and mars signs they have since those placements are also important when determining compatibility.
I don't believe it would be based on your sign, I think it would be based more on how the females would want to go about the situation. It usually just comes naturally, almost like instinct I guess. Lol. But if you were basing off signs I would say a Pisces, they seem to have more of a dominant meaning to them.