Bad sex?
I guess it would have to do more with attitude than technique. If either of the participants acted bored, selfish, or less than enthusiastic, then that would be bad. Also, anyone who comes to the bed with any kind of “I dont do that” attitude would be bad a bad lover. When I read about people who have partners that refuse to pleasure them orally or try any kind of toy or experimentation, it just makes me kinda sad.
Good sex?
Ideally happens when both partners are clean, feeling good, enthusastic and attentive to each other’s needs. But I have had some incredible, toe curling, collapsed in a soft heap panting afterwards kind of sex when I was funky sweaty, hungover or running a fever too.
Good sex can come in many forms like
sweet tender, kissing, cuddling, stroking, continuous eye contact sex
intense, spiritual, restrained tantric kind of sex
slightly risky, might get caught any minute public sex
hot, hot, hot frantic, tear each other’s clothes off while kissing and groping and leaving a trail of undies leading to the bedroom sex
playful, imaginitive, tie me to the bed and let’s try out the new toy sex
fun, messy anything involving whipped cream, chocolate syrup, honey or almond oil sex
lots and lots of oral multi orgasmic but not necessarily culminating in penetration sex
energetic, 2 or 3 positons sex
or my favorite, hard powerful, on my knees clutching the sheets and while screaming into my pillow sex