How are the bases defined again? (ie. 1st base = kissing, etc.)

                              ,^.
                             < 2 >  2nd Base: Groping, copping a feel
                            / `.' \
                          /         \
                        /             \
  3rd Base:        ,^./        _        \,^.
  Finger-fucking, < 3 >       |O|       < 1 > 1st Base: [French] kissing
  mutual masturb.  `.'\        -        /`.'
                        \             /
                          \         /
                            \ ___ /
                             | H |
                              \./
            Home Run: 'Going All The Way', Sexual Intercourse