Is There Any Nudity Or Visual Sex In Weeds Episodes 4 5 And 6?

I'm thinking of watching these, but my team has to be in front of my parents.
  I put on my headphones, so I have the audio covered.
  I just want to know if there is anything to worry my parents watching.
  Drug use is fine, just can not have actual sex scenes or nudity or kissing or sucking lesbians or whatever.