Kima gives her boyfriend 4 kisses every day. In one week, there are 7 days, so in one week, she gives:
\[ 4 \text{ kisses/day} \times 7 \text{ days} = 28 \text{ kisses/week} \]
In 2 weeks, she will give:
\[ 28 \text{ kisses/week} \times 2 \text{ weeks} = 56 \text{ kisses} \]
Therefore, Kima gives her boyfriend 56 kisses in 2 weeks.