Maybe not an "ideal," and probably shouldn't be a "goal" because it can be VERY hard to achieve...... depending on the sex act. Simultaneous orgasms during 69 can be mind-blowing awesome, but almost impossible to choreograph. Can be easier to achieve while stroking dick-to-dick, head-to-head, underside-to-underside. Can control the "timing" better that way. That can be fun, but messy...... lots of cum everywhere.